Hnub ci Zog yog hluav taws xob txhawb los ntawm lub hnub. Ntev dhau los, tib neeg tsuas yog siv roj thiab thee los khiav cov tshuab xws li chav tsheb ciav hlau thiab cov chaw tsim khoom. Tam sim no, lub hnub ci zog tau siv rau txhua lub tshuab thiab khoom siv xws li tsheb, cov dav hlau, thiab khoom siv hauv tsev. Koj tuaj yeem txias hauv lub ntiaj teb me ntsis los ntawm kev teeb tsa cov hnub ci saum koj lub ru tsev. Tab sis kom paub tseeb tias lub hnub ci hluav taws xob ua haujlwm, koj yuav tsum nug tus kws tshaj lij kom ua cov duab tshav ntuj.
Kev sim sab hnub ci yog txheej txheem kev kuaj lub hnub ci hluav taws xob yog tias lawv tseem tuaj yeem siv lossis tsis siv. Txhua tus txheej txheem koom nrog ua cov hnub ci ci muaj kev ntsuam xyuas tshwj xeeb. Ua ntej koj ua lub vaj huam sib luag hnub ci, cov khoom siv los siv raug tshuaj xyuas. Thaum ua lub vaj huam sib luag, kev xeem tau ntev yog qhov xav tau. Thiab tom qab lub vaj huam sib luag tiav tiav lossis puas lawm, kev kuaj hnub ci yog xav tau.
Txhawm rau ntsuas hnub ci, txhua yam koj yuav tsum muaj yog lub hnub ci vaj huam sib luag, ua ntau hom, thiab hnub ci. Cov kws tshaj lij muaj peev xwm tsuas kuaj lub hnub ci, yog li coj koj cov menyuam tawm thiab tsis txhob cia lawv kov lossis pom tus txheej txheem (tshem lawv cov kev xav paub). Tus kws tshaj lij yuav tshawb xyuas qhov kev puas tsuaj ua ntej. Nws yuav txheeb xyuas yog tias pem hauv ntej vaj huam sib luag tau tawg, los yog lub thav duab sab yog khoov. Tom qab nws kuaj pom lub hnub ci vaj huam sib luag, nws yuav hle lub npog lub puab tsaig uas feem ntau pom tom qab. Nws yuav kuaj cov ampere thiab voltage classifications ntawm daim ntawv lo piv rau tom qab. Yuav tsum pom txoj kev qhib txhuas thiab pom tias muaj qhov zoo thiab qhov tsis zoo ntawm qhov chaw sib txawv. Tom qab ntawd tus kws tshaj lij yuav siv ntau lub multitester thiab tig pob qhov rooj rau tus nqi tsim nyog. Piv txwv li, yog tias daim ntawv lo hais tias qhov xav tau qhov hluav taws xob yog 220 V, tso lub pointer rau 1000 V thiab tsis yog 100 V. Thiab nws yuav tsum nyob rau hauv DC thiab tsis yog AC. Nws yuav tso ob lub khais rau ntawm qhov tsis zoo thiab qhov tsis zoo (yog tias koj tsis pom muaj qhov ua ke, cov liab yog qhov zoo thiab lub dub yog qhov tsis zoo). Thiab nws yuav tsum tsis txhob cuam tshuam ob lub khaib thiab nws cov ntiv tes yuav tsum tsis txhob kov cov hlau qhib (tshwj tsis yog nws yog qhov cuav). Tom qab ntawd nws yuav coj tus nqi Ampere nrog cov txheej txheem qub. Yog tias nws tau ua yuam kev, ces tus multitester yuav tawg. Tom qab tau txais tus nqi, nws yuav ua qhov kev tshuaj xyuas kev sib piv. Tus nqi yuav tsum nyob ze rau tus nqi uas daim ntawv qhia, thiab yog tias nws siab dhau lossis qis nws tsuas yog txhais tau tias hnub ci vaj huam sib luag daim id puas ntsoog.
Kev sim hnub ci tuaj yeem saib tau yooj yim, tab sis nws yog ib txoj haujlwm txaus ntshai. Cia cov kws tshaj lij coj nws, lossis yog tias koj yuav ua, khaws cov theem no hauv siab. Xav paub ntau ntxiv thov khij lub vev xaib.